*Independent and Dependenent Variable Scenarios Flashcards
Scientific Method
What is the independent variable in the following scenario?
A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed after two years.
Growth Hormone
What is the dependent variable in the following scenario?
A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed after two years.
Weight of the cows
What is the independent variable in the following scenario?
Mosquito repellent is sprayed on one arm and the other arm is not sprayed. The numberof mosquito bites is counted after 2 hours.
Mosquito repellent
What is the dependent variable in the following scenario?
Mosquito repellent is sprayed on one arm and the other arm is not sprayed. The numberof mosquito bites is counted after 2 hours.
Number of mosquito bites
What is the independent variable in the following scenario?
One grape is placed in tap water and another grape is placed in salt water. The change in their mass is measured after a day.
Type of water
What is the dependent variable in the following scenario?
One grape is placed in tap water and another grape is placed in salt water. The change in their mass is measured after a day.
Mass of grapes
What is the independent variable in the following scenario?
Two different cars are traveling at 60mph. At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.
Type/brand of car
What is the dependent variable in the following scenario?
Two different cars are traveling at 60mph. At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.
Distance it takes for cars to stop
What is the independent variable in the following scenario?
Pillbugs are placed in a container where they have a choice of wet or a dry environment. Researchers record how much time was spent of each side.
Environment
What is the dependent variable in the following scenario?
Pillbugs are placed in a container where they have a choice of wet or a dry environment. Researchers record how much time was spent of each side.
Time pillbugs spent on each side
What is the independent variable in the following scenario?
A stapler is used to staple 100 papers, it jams 5 times during the trial. A different brand of stapler performs the same test; it jams 22 times.
Type of stapler
What is the dependent variable in the following scenario?
A stapler is used to staple 100 papers, it jams 5 times during the trial. A different brand of stapler performs the same test; it jams 22 times.
Number of times stapler jams
What is the independent variable in the following scenario?
Cockroaches are exposed to a pesticide. Ater 3 hours, 95% of the insects are dead.
Pesticide
What is the dependent variable in the following scenario?
Cockroaches are exposed to a pesticide. Ater 3 hours, 95% of the insects are dead.
Percentage of cockroaches dead
What is the independent variable in the following scenario?
Two plants are grown using the same light and pots. One plant is given water that has been microwaved and the other is given regular tap water. Their height is measured after 2 weeks.
Temperature of water
What is the dependent variable in the following scenario?
Two plants are grown using the same light and pots. One plant is given water that has been microwaved and the other is given regular tap water. Their height is measured after 2 weeks.
Height of the plants
What is the independent variable in the following scenario?
The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again.
Environment of the soldier
What is the dependent variable in the following scenario?
The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again.
Blood pressure of the soldier
What is the independent variable in the following scenario?
An apple is cut into slices. Half of the slices are sprayed with lemon juice. All slices are stored in a sealed plastic bag. After 4 days, they are observed to see how brown they turned.
Lemon juice
What is the dependent variable in the following scenario?
An apple is cut into slices. Half of the slices are sprayed with lemon juice. All slices are stored in a sealed plastic bag. After 4 days, they are observed to see how brown they turned.
How brown the apple turned
What is the independent variable in the following scenario?
The respiration rate of a goldfish is measured. The goldfish is then placed in cold water and the respiration rate is measured again.
Temperature of water goldfish is in
What is the dependent variable in the following scenario?
The respiration rate of a goldfish is measured. The goldfish is then placed in cold water and the respiration rate is measured again.
Respiration rate of the goldfish
What is the independent variable in the following scenario?
Bacteria are grown in a petri dish. One side of the dish is sprayed with an antibiotic. After a week, the number of bacteria colonies are counted on each side.
Antibiotic
What is the dependent variable in the following scenario?
Bacteria are grown in a petri dish. One side of the dish is sprayed with an antibiotic. After a week, the number of bacteria colonies are counted on each side.
Number of bacteria colonies on each side
